<div>
    <!-- valid go escape sequences -->
    <input pattern="\a"/>
    <input pattern="\b"/>
    <input pattern="\f"/>
    <input pattern="\n"/>
    <input pattern="\r"/>
    <input pattern="\t"/>
    <input pattern="\v"/>
    <input pattern="\\"/>
    <input pattern="\777"/>
    <input pattern="\xFF"/>
    <input pattern="\u00FF"/>
    <input pattern="\u00FF\u00FF\u00FF"/>
    <!-- invalid go escape sequences -->
    <input pattern="\s"/>
</div>
